n loewen
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efab770460
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(notes) 2023-08-21 - Add section brainstorming a revised memory-map + initial Instruction Pointer
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2023-08-21 14:34:20 +01:00 |
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n loewen
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209a03f281
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(notes) todos - Remove JSDoc entry
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2023-08-21 14:11:49 +01:00 |
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n loewen
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286875135f
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(notes) - Update to remove todo entry for previous commit
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2023-08-21 12:31:20 +01:00 |
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n loewen
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5e1cf9e413
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assembler - Change label for program counter from `*addr` to `*`
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2023-08-21 12:30:31 +01:00 |
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n loewen
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9fa1bf5392
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(docs) readme - Change keypad reference to a side-by-side layout
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2023-08-21 10:42:36 +01:00 |
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n loewen
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c5c64e5cd5
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(docs) readme - Create a new 'peripherals' section (split up 'memory map/peripherals' section)
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2023-08-21 10:37:51 +01:00 |
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n loewen
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f421abaaf7
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(notes) todos/dev note - Update todo list, copying items from today's dev note
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2023-08-21 10:34:31 +01:00 |
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n loewen
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08fe395a5f
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(note) 2023-08-21 - Create dev note
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2023-08-21 10:29:37 +01:00 |
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n loewen
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c53bc14c36
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(notes) 2023-08-17 - Create note / List todos + program ideas
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2023-08-17 11:34:56 +01:00 |
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n loewen
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37578f038d
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(notes) 2023-08-16 - Update todo list to indicate that an item will be moved to the next note
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2023-08-17 11:33:56 +01:00 |
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n loewen
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2f90bbd453
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Docs: Add todo re: initial IP location
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2023-08-16 16:40:46 +01:00 |
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n loewen
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742303e06c
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Docs: Update dependency list
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2023-08-16 16:37:41 +01:00 |
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n loewen
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ffe96962a4
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Docs: Update todos re: invoking the cpu/assembler; move notes on this from `run-cpu.js` to `todo.md`
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2023-08-16 16:36:01 +01:00 |
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n loewen
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12f8e39c54
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Docs: Update todo list
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2023-08-16 16:28:14 +01:00 |
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n loewen
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700702c4ba
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Docs: Update today's dev note
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2023-08-16 16:28:08 +01:00 |
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n loewen
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501910b17f
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Feature: Keypad simulation!
Refactor: Tidy up constants use for machine configuration
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2023-08-16 16:23:59 +01:00 |
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n loewen
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b8265409cf
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Fix: Load CPU with 256 bytes of memory, regardless of the length of the data provided
(This mostly reverts the previous commit -- better to have short assembler output, and memory-padding/validation on the CPU side)
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2023-08-16 15:55:04 +01:00 |
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n loewen
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6e897b7f74
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Fix (Assembler): Pad machine code output to a full $FF bytes
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2023-08-16 15:38:59 +01:00 |
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n loewen
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5fba7daf32
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Docs: Rename computer "Cardiograph _Mark_ I"
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2023-08-16 14:06:41 +01:00 |
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n loewen
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dd0fdd3b06
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Feature (CPU): Implement a simple single-stepping mode
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2023-08-16 13:56:23 +01:00 |
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n loewen
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344257a322
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Refactor: Rename `framerate` to `clockSpeed` and add jsdoc annotation
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2023-08-16 12:58:51 +01:00 |
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n loewen
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1d88d0b5b6
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Refactor: Use `setInterval` to clock CPU, in order to remove unnecessary use of async/await
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2023-08-16 12:56:30 +01:00 |
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n loewen
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aa6cbc3e6d
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Refactor (CPU): Move more logic into `stepCPU()` in preparation for implementing single-stepping
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2023-08-16 12:50:00 +01:00 |
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n loewen
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3ac1276bfe
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Docs: Update today's dev note
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2023-08-16 12:48:57 +01:00 |
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n loewen
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8027f4d961
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Docs: update today's dev note
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2023-08-16 09:49:10 +01:00 |
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n loewen
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c590ca4882
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Refactor: Rename CPU to cpu.js (from 'simulator.js')
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2023-08-16 09:48:56 +01:00 |
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n loewen
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d02c8241af
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Docs: Add dev notes for 2023-08-16
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2023-08-16 09:39:48 +01:00 |
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n loewen
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5078efa1fe
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Linting: Remove FIXMEs that I'm unlikely to do any time soon
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2023-08-16 09:39:03 +01:00 |
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n loewen
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4dda5881ef
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Refactor (assembler): Define label prefix in a constant, for easy re-configuration
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2023-08-16 09:38:18 +01:00 |
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n loewen
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3fd862a55d
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! Refactor (assembler): Chance constant prefix from '=' to '#'
'=' could be confusing when referencing a constant, since it looks like assignment
'#' is hopefully clearer (by analog to #hashtags)
Breaking change!
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2023-08-16 09:35:37 +01:00 |
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n loewen
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9fefa0916a
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Feature (assembler): Allow assigning `*ADDR` to a constant
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2023-08-16 09:29:27 +01:00 |
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n loewen
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6a3c70be37
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Docs: Mark unfinished todos with 'incomplete' checkboxes (in Obsidian Tasks style) so that they don't show up when searching for todos
(See https://publish.obsidian.md/tasks/Getting+Started/Statuses)
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2023-08-16 09:09:44 +01:00 |
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n loewen
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8f9f50e28c
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Update sketch to suggest use of `*ADDR`
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2023-08-15 21:31:35 +01:00 |
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n loewen
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4e01a0943c
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Feature: Add `*ADDR` assembly operation (`*ADDR`, used as an operand, is replaced with the memory address where the current line will be stored after assembly)
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2023-08-15 21:29:28 +01:00 |
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n loewen
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190592813d
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Merge branch 'main' into 5x5-display
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2023-08-15 20:58:38 +01:00 |
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n loewen
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5c41369ecd
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Add sketches/notes re: subroutines and a call stack
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2023-08-15 20:58:05 +01:00 |
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n loewen
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2cceaa71f2
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Refactor: Rewrite fill-display:
- make more use of constants
- improve comments
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2023-08-15 20:53:51 +01:00 |
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n loewen
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899c24be7f
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Bugfix (assembler): Make camelCase =constant names work in indirect expressions
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2023-08-15 20:51:15 +01:00 |
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n loewen
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88e36eccce
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Docs: Update to-dos in dev note 2023-08-15
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2023-08-15 20:17:02 +01:00 |
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n loewen
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59861ecdeb
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Docs: Update to-do list
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2023-08-15 20:15:35 +01:00 |
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n loewen
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2a7d855b35
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Docs: Add an abandoned interval-timer-based refactor of the main CPU loop to dev notes
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2023-08-15 20:15:35 +01:00 |
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n loewen
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934f4c0f3f
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Docs: Update to-do list
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2023-08-15 17:02:02 +01:00 |
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n loewen
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1baa0ded32
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Docs: Add an abandoned interval-timer-based refactor of the main CPU loop to dev notes
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2023-08-15 17:01:51 +01:00 |
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n loewen
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c415056194
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! Feature: Change to a 5x5 display [breaking change]
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2023-08-15 16:59:12 +01:00 |
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n loewen
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af12704c36
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Bugfix (simulator): Use the correct flag abbreviations in debug logs
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2023-08-15 16:56:22 +01:00 |
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n loewen
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4a2f3724d5
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Bugfix (assembler): Add a quick hack to make camelCase =constant names less likely to fail
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2023-08-15 16:55:08 +01:00 |
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n loewen
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9414d19fad
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Bugfix (assembler): Split opcodes from operands using a regular expression, so that tabs don't break it
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2023-08-15 16:52:57 +01:00 |
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n loewen
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79ad1678f4
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Feature (simulator): Add 'simulation halting - reached cycle limit' notice
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2023-08-15 16:05:31 +01:00 |
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n loewen
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245da348ea
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Docs: Add dev notes on memory bank-switching
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2023-08-15 15:38:09 +01:00 |
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n loewen
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6754725c9b
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Docs: Add dev notes for 2023-08-15
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2023-08-15 15:28:42 +01:00 |